/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements. See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership. The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License. You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied. See the License for the
 * specific language governing permissions and limitations under the License.
 */


/**
 * @fileoverview Initial configuration/boot-strapping work for common container
 * to operate. This includes setting up global environment variables.
 */
(function() {
  function initializeGlobalVars() {
    window.__CONTAINER_URI = shindig.uri(window.location.href);

    window.__API_URI = null;
    var scriptEl = null;
    if (window.__CONTAINER_SCRIPT_ID) {
      scriptEl = document.getElementById(window.__CONTAINER_SCRIPT_ID);
    } else {
      var scriptEls = document.getElementsByTagName('script');
      if (scriptEls.length > 0) {
        scriptEl = scriptEls[scriptEls.length - 1];
      }
    }

    if (scriptEl) {
      window.__API_URI = shindig.uri(scriptEl.src);
      // In case script URI is relative, resolve (make absolute) with container.
      window.__API_URI.resolve(window.__CONTAINER_URI);
    }

    window.__CONTAINER = window.__API_URI ? window.__API_URI.getQP('container') : 'default';
  }

  initializeGlobalVars();
})();
